Optical atmospheric link system
US5448391A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jun 29, 1993 |
| Grant date | Sep 5, 1995 |
| Priority date | — |
| Expiry date | Jun 29, 2013 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04B10/1125
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
An optical atmospheric link device which is adapted to quickly correct the incident position of a light beam with high follow-up accuracy. Incident position detection signals are generated by an optical beam incident position detector in correspondence to the incident position of a first optical beam. The incident position detection signal along with a reference incidence position signal, are utilized to generate incident position correcting signal. The incident position correcting is utilized to move a lens to quickly correct the incident position in a small amplitude mode. Furthermore, a displacement detection signal is generated which corresponds to the displacement of the lens. The displacement detection signal and the incident position correcting signal are utilized to move a pair of mirrors to slowly correct the incident position in a large amplitude mode.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.